Hanger for articles to be plated



April 15, 1930. LICHTMAN HANGER FOR ARTICLES TO BE PLA'ITED Fil ed Nov: 2' 1928' INVENTOR.

' Law: L/av/rMA/v TORNEYS.

Patented Apr. 15, 1930 UNITED, STATES OF NEW YORK, N. Y., ASSIGNOR TO CHROMEPLATE, INC.', OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY LOUIS LICHTMAN,

PATENT OFFICE HANGER FOR ARTICLES '10v IBE PLATED Application filed November 27, 1928. Serial no. 322,220.

This invention is an improvement in hangers for articles to be plated, and more partlcularly in a hanger for Chromium plating, enabling the articles to be supported in the most favorable position for receiving the deposit.

. In electro-plating, the article is the cathode,

and there must be a good electrical connec-,

tion between the article and the hanger, with which the negative lead of the circuit is connected, in order to obtain a maximum of efficiency.

In certain ware, such as hollow ware, ware of substantially open frame shape, and the .20 other as far as possible.

-One of the primary objects of the present inventionis the provision of a type of hanger,

especially adapted for supporting the class of ware above mentioned, wherein the ware engaging element of the hanger is so arranged as to engage the ware ata plurality of points, and wherein resilient means is provided for forcing the engaging elements into close contact with the ware.

Another object is the provision of a simple and inexpensive construction, adapted to support a maximum of articles in a minimum of space.

With these and other objects in view the) invention consists in the construction and novel combination of parts fully described hereinafter, illustrated in the accompanying drawings, and pointed out in the claims appended hereto, it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims, may be resorted to without departing from the spirit of the invention. v 4 I In the drawings forming a part hereof Fig. 1 is a transverse vertical section of a plating tank showing one form of hanger.

Figs. 2, 3 and 4 are perspective views of alternate arrangements.-

v In Fig. 1, he improved hanger is shown in connection with a plating tank 1 of any des1red construction, and the hanger is suspended vfrom a cross bar 2 of conducting ma-" terial, with which the negative lead of the circuit is connected.

' Thehanger proper comprises a bar 3 of suitable intervals, U-shaped elements are. se-

cured, each element including a body 6 and arms 7 extending from the ends of the body.

The elements are arranged in pairs, a member at each sideof the pair, and they may be secured to the bar in any suitable manner, as for instance, by welding, or by a rivet, as shown. The body of each element is arched slightly in the present instance, and is arganged with its convex surface toward the The arms 7 of each element are symmetrical, each being substantially concavo-convex, and arranged with the convex surfaces of the arms of the pair adjacent. Each arm is provided at its free end with an angular ortion 8, and these angular ortions may be ent outward as shown for t e top elements in Fig. 1, or they maybe bent inward as shown for thecentral elements, depending upon the character of the ware to be supported.

With hollow ware, for instance, or with substantially annular bodies, whether the shape be a ring, an oval, or a rectangle, the article is arranged over the arms, with the angular ends 8 engaging the inner surface of the article. Since the body and the arms are I resilient, there will be close contact between 90.

the arms and the article.

In some cases it is desirable to engage the outer surface of the article, or the artlcle'may' be so shaped that the type of arm shown for f the central elements is the most suitable. The

I in Fig. 2, the hanger includes a. bar 9, having its upper end offset laterally as shown at 10, and provided with .a hook 11. Preferably the hanger shown in Fig. 1 is similarly ofiset, the arrangement being such that the hanger is directly below the cross bar, and hangs straight.- Y

At suitable intervals cross bars" 12 are secured transversely of the bar, by means of welding indicated at 13. At each end each bar 12 carries a supporting element. Each of these elements is of spring wire, bent to form a complete coil 14 intermediate the ends, and a pair of diverging arms 15. A portion of the coil is secured to the bar by welding as indicated at 16, and the arms diverge from the coil, each having the extremity thereof curved slightly outward as shown at 17,'and notched as shown at 18.

The notches may be on the outer surfaces )f the arms as in the present instance, or they may be on the inner surfaces, and asmany cross bars are provided as may be desired.

This type of hanger is specially adapted to support articles in the form of open frames, the notches being designed to prevent slipping of the ware.

In Fig. 3, a hanger is shown in the form of a rectangular frame19. The ends of the frame are extended upwardly and provided with hooks similar to the hooks 10-11 of Fig. 2. The top and bottom of the frame are connected at suitable intervals by rods '21. The ends of the rods are passed through the frame members, and engaged 'by nuts 22 above and below the frame members.

Each rod is provided with a plurality of supporting elements. Each of these elements is substantially U -shaped, consisting of a pair of arms 23. The connection between the arms indicated at 24, is bent to overlie thearms as shown, and this portion is secured to the rod.

.The arms diverge slightly, and they are resilient. This type of hanger is especially adapted for supporting nuts and likesmall artices having a central opening or a .pair'of spacedppenings, into which the arms may extend.

The embodiment of the invention shown in Fig. 4 is adapted for supporting articles such as amp reflectors, and the like, that is, dome shaped bodies having an internal enlarges ment or flange at the open side. Each of these hangers includes a bar 25 having a hook 26 at its upper end. The engaging element includes a pair of are shaped strips 27, arranged with their concave faces adjacent, and

' they are supported in symmetrical relation by a substantially -U-shaped member;

This member is composed of abody 28, which is secured .to the bar{25, and arms 29 which are secured to the strips. 27. The member 28-A-29 is resilient, and it will be noticed that each arm has a portion adjacent to the body 28, which is substantially perpendicular to the bar. This provides space to re-'.

ceive a flangeor the like," on the dome shaped article. Innsing this hanger, the strips 27 are inserted in the dome shaped articleloehind the flange or the enlargement, and the resiliency of the elements 28-29 forces the strips outward. The free ends of the strips are bent slightly inward as shown at 31, 'to prevent scratching of the ware.

It will be noticed that in each instance the hanger engages within the article, leaving the entire outer surface thereof free for receiving the deposit, and the entire hanger,

article to support the same in substantially horizontal position, and to be pressed closely against said inner surface to insure electrical connection.

. 2. In a hanger for frame-like and hollow articles to be electro-plated, a support adapted to be suspended in a plating tank, and having in connection therewith aplurality of article engaging elements, each substantially U- shaped having the body thereof secured to the support, and the arms resilient and extending laterally from the support, and adapted to engage the inner surface of the article to support the same in substantially horizontal position, and to be pressed closely against said inner surface to insure 'elec trical connection, each arm having a transverse plate at its free end to provide a relatively large area of contacting surface.

3. In a hanger for frame-like and hollow articles to be electro-plated, a support adapted to be suspended in a plating tank, and having in connection therewith a plurality of article engaging elements, each comprising a body connected to the support and arms extending laterally from the body and adapted to engage the inner surfaceof the article to support the same, said arms being resilient to be pressed closely against the article to insure electrical connection, the free end of each arm being notched to prevent slipping.

Signed at New York city in the county of. New York and State of New 'York, this 5thday of November, A. D. 1928.

y LOUIS LIOHTMAN. 

